I certainly see your point. I will revisit , look for a stub type stem. I will see if I can find younger ones. I have a photo of some glowing on my observations. The stick was given to me, the mushrooms were much smaller . It took a 30 second exposure and a contrast boost to get a good shot.

too old to have much of a glow anymore, it fades pretty quickly once the mushrooms mature. It is also common to find P.stipticus that was fresh months ago that dried out and rehydrated so that it appears fresh again, they do not glow when that happens.